Files
pezkuwi-subxt/substrate/core/service/src/error.rs
T
Tomasz Drwięga c162fc5ff1 Expunge error-chain (feat. tomaka) (#2662)
* Remove error_chain

* Expunge error-chain from rpc and service.

* Expunge from transaction pool.

* Expunge from node/cli

* Expunge from keystore.

* Remove some boilerplate.

* Fix remaining stuff.

* Improve on deprecation message.

* Fix issues.

* Fix trnsaction pool tests.

* Fix the rest.

* Fix borked merge.

* Update lock
2019-05-24 10:35:31 +01:00

65 lines
1.8 KiB
Rust

// Copyright 2017-2019 Parity Technologies (UK) Ltd.
// This file is part of Substrate.
// Substrate is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// Substrate is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with Substrate. If not, see <http://www.gnu.org/licenses/>.
//! Errors that can occur during the service operation.
use client;
use network;
use keystore;
use consensus_common;
/// Service Result typedef.
pub type Result<T> = std::result::Result<T, Error>;
/// Service errors.
#[derive(Debug, derive_more::Display, derive_more::From)]
pub enum Error {
/// Client error.
Client(client::error::Error),
/// IO error.
Io(std::io::Error),
/// Consensus error.
Consensus(consensus_common::Error),
/// Network error.
Network(network::error::Error),
/// Keystore error.
Keystore(keystore::Error),
/// Best chain selection strategy is missing.
#[display(fmt="Best chain selection strategy (SelectChain) is not provided.")]
SelectChainRequired,
/// Other error.
Other(String),
}
impl<'a> From<&'a str> for Error {
fn from(s: &'a str) -> Self {
Error::Other(s.into())
}
}
impl std::error::Error for Error {
fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
match self {
Error::Client(ref err) => Some(err),
Error::Io(ref err) => Some(err),
Error::Consensus(ref err) => Some(err),
Error::Network(ref err) => Some(err),
Error::Keystore(ref err) => Some(err),
_ => None,
}
}
}